S
M
T
W
T
F
S
26
52°
37°
27
49°
33°
28
57°
34°
29
56°
39°
30
58°
41°
1
59°
38°
2
54°
31°
3
52°
35°
4
51°
35°
5
52°
33°
6
55°
38°
7
53°
39°
8
54°
38°
9
53°
36°
10
59°
34°
11
60°
41°
12
58°
37°
13
58°
40°
14
59°
40°
15
59°
38°
16
58°
44°
17
67°
43°
18
61°
41°
19
58°
40°
20
61°
44°
21
65°
46°
22
65°
41°
23
69°
40°
24
69°
40°
25
70°
45°
26
72°
43°
27
71°
48°
28
73°
49°
29
72°
47°
30
70°
49°
31
66°
46°
1
72°
44°
2
74°
40°
3
65°
45°
4
66°
50°
5
73°
53°
6
76°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rosseau
Rosseau's May 2026 forecast shows daily high temperatures ranging from 49° to 76°, with overnight lows between 31° and 53°. The average high for May is 62° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Rosseau. See also: June | July | August.
